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Salterella
''Salterella'' is an enigmatic Cambrian genus with a small, conical, calcareous shell that appears to be septate, but is rather filled with stratified laminar deposits. The shell contains grains of sediment, which are obtained selectively (with a preference for denser grains) by a manner also observed in foramanifera. The genus was established by Elkanah Billings in 1861, and was named after the English palaeontologist John William Salter. The genus is known from multiple locations worldwide, such as Newfoundland and Labrador and Quebec in Canada, Svalbard, the Scottish Highlands and Argentina. The related fossil genus '' Volborthella'' was formerly placed in synonymy with ''Salterella'' by Ellis L. Yochelson in 1983, due to the similarities between the two genera (though ''Volborthella'' notably lacks an outer calcareous shell). However, ''Volborthella'' was later accepted as a separate genus again by Yochelson & Kisselev in 2003. Both genera are currently placed in the Sal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salterellidae
Salterellidae is a family of enigmatic fossil genera from the Early to Middle Cambrian. It was originally created for the genus ''Salterella'' by Charles Doolittle Walcott, who placed it in the group Pteropoda. It was later placed in Agmata, a proposed extinct phylum by Ellis L. Yochelson which is accepted by some other authors. Genera * †'' Ellisell'' Peel & Berg-Madsen, 1988 ** †''Ellisell yochelsoni'' Peel & Berg-Madsen, 1988 * †''Salterella'' Billings, 1861 ** †''Salterella conulata'' Clark, 1924 ** †''Salterella maccullochi'' ( Murchison, 1859) * †''Volborthella'' Schmidt, 1888 ** †''Volborthella tenuis'' Schmidt Schmidt may refer to: * Schmidt (surname), including list of people with the surname * Schmidt (singer) (born 1990), German pop and jazz singer * Schmidt (lunar crater), a small lunar impact crater * Schmidt (Martian crater), a List of craters on ..., 1888 References Prehistoric animal families Prehistoric animal enigmatic taxa Taxa named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agmata
Agmata is a proposed extinct phylum of small animals with a calcareous conical shell. They were originally thought to be cephalopods or annelid worms. The living animals filled up to five-sixths of their shell with laminae, angled layers composed of grains of quartz or calcium carbonate detritus from the environment cemented together, with larger grains near the shell wall and smaller grains near the center. A very fine tube ran through the center of the shell. The grains may be of quartz or calcium carbonate, but are of specific shapes and materials that are rare in the surrounding rock. Though the body of the living animal is not preserved, it had to be able to find, choose, and retrieve rare grains from its environment to build the laminae. The phylum's name comes from the Greek word for "fragments", referring to these fine fragments and grains of detritus. It was proposed by the paleontologist and geologist (1928–2006) in 1977 to house the agglutinating Early Cambrian fos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volborthella
''Volborthella'' is an animal of uncertain classification, whose fossils pre-date . It has been considered for a period a cephalopod. However discoveries of more detailed fossils showed that ''Volborthella''’s small, conical shell was not secreted but built from grains of the mineral silicon dioxide (silica), and that it was not divided into a series of compartments by septa as those of fossil shelled cephalopods and the living ''Nautilus'' are. This illusion was a result of the laminated texture of the organisms' tests. Therefore, ''Volborthella''’s classification is now uncertain. It has been speculated that it may in fact represent a sclerite of a larger organism, on the basis of one specimen; however, it may be premature to accept this hypothesis, as the arrangement of sclerites producing this impression may have occurred by chance. The Ordovician scleritome-bearing '' Curviconophorus'', as well as the Halwaxiids, lobopods and echinoderms, demonstrate the diversity of orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John William Salter
John William Salter (15 December 1820 – 2 December 1869) was an England, English natural history, naturalist, geologist, and palaeontologist. Salter was apprenticed in 1835 to James De Carle Sowerby, and was engaged in drawing and engraving the plates for Sowerby's ''Mineral Conchology'', the ''Supplement to Sowerby's English Botany'', and other natural history works. In 1842, he was employed for a short time by Adam Sedgwick in arranging the fossils in the Woodwardian Museum at Cambridge, and he accompanied the professor on several geological expeditions (1842–1845) into Wales. Salter was born in Pratt Place, Camden Town, the son of John Salter (1779–1837), a banking clerk, and his wife, Mary Ann. His birth was registered at Dr. William's Library near Cripplegate, London. In 1846, Salter married Sally, daughter of James De Carle Sowerby, and eventually fathered seven children with her. Also in 1846, Salter was appointed on the staff of the British Geological Survey, Geol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elkanah Billings
Elkanah Billings (May 5, 1820 – June 14, 1876) is often referred to as Canada's first paleontologist. Billings was born on a farm by the Rideau River outside Bytown (Ottawa), now known as Billings Estate Museum, Billings Estate. His parents were named Lamira Dow and Braddish Billings. His family included an older sister named Sabra and an older brother Maj Braddish Billings Jr, who practised as an architect and served in the North-West Rebellion. His younger siblings were Samuel, Sarah (known as Sally) and Charles. He was originally educated in law and in 1845, he was called to the Canadian bar. In 1856, he founded the journal the ''Canadian Naturalist (and Geologist)''. He continued to practise law until 1857, when he was hired to be the first paleontologist for Geological Survey of Canada (GSC). In his lifetime, he identified 1065 new species and 61 new genus, genera, including ''Aspidella'', the first documented fossil of the Ediacaran biota. He married Helen Walker Wilso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obolella
''Obolella'' is a genus of Cambrian The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ... brachiopods. References Brachiopods of Europe Cambrian brachiopods Prehistoric brachiopod genera Paleozoic life of Newfoundland and Labrador {{brachiopod-stub Cambrian genus extinctions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massachusetts
Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut [Massachusett writing systems, məhswatʃəwiːsət],'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England region of the Northeastern United States. It borders on the Atlantic Ocean and Gulf of Maine to the east, Connecticut and Rhode Island to the south, New Hampshire and Vermont to the north, and New York (state), New York to the west. The state's capital and List of municipalities in Massachusetts, most populous city, as well as its cultural and financial center, is Boston. Massachusetts is also home to the urban area, urban core of Greater Boston, the largest metropolitan area in New England and a region profoundly influential upon American History of the United States, history, academia, and the Economy of the United States, research economy. Originally dependent on agriculture, fishing, and trade. Massachusetts was transformed into a manuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Chapman (palaeontologist)
Frederick Chapman (13 February 1864 – 10 December 1943) was the inaugural Australian Commonwealth Palaeontologist. Early life Chapman was born in Camden Town, London, England and studied at Royal College of Science, London where he was initially an assistant to John Wesley Judd. Chapman qualified as a teacher of geology and physiography at the college and was encouraged by Judd's study of boring samples from around London. He published ''Foraminifera. An Introduction to the Study of the Protozoa'' (London, 1902) and went on to become a world authority on Foraminifera. Career in Australia Chapman was Palaeontologist to the National Museum, Melbourne, Australia from 1902 to 1927. He published papers on the collection of fossils stored there including sponges, corals and fishes. He then served as the first Australian Commonwealth Palaeontologist 1927-35, where Irene Crespin was his assistant and later succeeded him. Chapman was awarded the Lyell Prize for research by the Geologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Redlichia
''Redlichia'' is a genus of redlichiida, redlichiid trilobite in the family Redlichiidae, with large to very large species (up to long). Fossils of various species are found in Lower Cambrian (Toyonian)-aged marine strata from China, Korea, Pakistan, the Himalayas, Iran, Spain, South Central Siberia, southern Siberia, and Antarctica, and from Middle Cambrian (Ordian)-aged marine strata of Australia. Description ''Redlichia'' has a rather flat and thinly calcified Anatomical terms of location#Dorsal and ventral, dorsal exoskeleton of inverted egg-shaped outline, about 1½× longer than wide, measured across the base of the genal spines and disregarding the spine on the 11th segment of the articulated middle part of the body (or Trilobite#Thorax, thorax). The headshield (or Trilobite#Cephalon, cephalon) is semicircular, about ⅓× as long as the body, with clear genal spines that are a smooth continuation of the border, that extend backward and outward and curving to be near pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Foerste
August F. Foerste (1862–1936) was an American geologist, science teacher, and paleontologist. Biography Foerste was born on May 7, 1862, in Dayton, Ohio. He studied geology at Denison University, from which he received a bachelor's degree in 1887. Later, he got master's degree at Harvard University in 1888, and PhD in 1890. He served as an assistant for the United States Geological Survey, in Harvard, in which he studied stratigraphy and petrography of New England. After his graduation from Harvard, he studied at the Heidelberg University and College de France for two years. He returned to Dayton in 1893 and became a science teacher at Robert W Steele High School, a position which he kept till his retirement in 1932. In 1896, 1897, and 1899 he spent his summer vacations in Indiana, while conducting geological surveys. In 1908 and 1919 he spent his summers in Ohio, doing his geological surveys there as well. From 1904 to 1912 he was in Kentucky conducting a geological survey; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria (Australia)
Victoria is a state in southeastern Australia. It is the second-smallest state with a land area of , the second most populated state (after New South Wales) with a population of over 6.5 million, and the most densely populated state in Australia (28 per km2). Victoria is bordered by New South Wales to the north and South Australia to the west, and is bounded by the Bass Strait to the south (with the exception of a small land border with Tasmania located along Boundary Islet), the Great Australian Bight portion of the Southern Ocean to the southwest, and the Tasman Sea (a marginal sea of the South Pacific Ocean) to the southeast. The state encompasses a range of climates and geographical features from its temperate coastal and central regions to the Victorian Alps in the northeast and the semi-arid north-west. The majority of the Victorian population is concentrated in the central-south area surrounding Port Phillip Bay, and in particular within the metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
